Talking-machine needle



lJan. l2 1926. 1,569,351

M. BLACKMAN TALKING MACHINE NEEDLE Filed Oct. 21. 1921 VEN 7.0/2`

' %0fl mma/1, unf fs By l i gr/ATTORNEY `lmatented jan. 12, `192.

UNITED STATES Lafssi PATENT OFFICE.

MABEL BLACKMAN, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO ESTELLEMCKEE AND ONE-HALF TO LILLIAN K. HOSIER, BOTH OF NEW YORK, N. Y.

TALKING-MACHINE NEEDLE.

Application filed October 21, 1921. Serial No. 509,281.

To all cri/071i t wif/, y animera.'

Be it known that l. MA1-nin l'LAcuMAN, a citizen ot' the United States,and a resident of the city of New Yori-, in the county and State of NewYork, have invented certain new and useful Improvements in Talking-Machine Needles, ot which the following is a full, clear, and exactdescription.

This invention relates to phonographs and in particular to thereproducing elements thereof.

A particular object ot' the invention is the production ot a needle andassociated Ipart that will tend to eliminate the metallic f chatterwhich is produced in that part of the needle that extends between thepoint thereoi2 and the needle holding chuck.

Another object is to produce a needle eneompassing element which can besold separate from or with the needle, and which can be used with theordinary reproducer without the necessity of changing the structure ofthe latter.

Dra/wings.

Figure 1 is a view in elevation of a portion of a phonograph includingthe reproducer and showing the association therewith l) escm'pte'on.

A phonograph comprising the usual universal arm 10 carrying thereproducer 11 is denoted generally by Extending downwarciy 'from thercproducer 11 is the chuck 13 in which the usr-al record engaging needle14 is held through the n'iedium ot the set screw 15.

The needle 14 is el' the usual type, which comprises enlarged portions1G and 17 thc latter ot which is inserted into the chuck 13, bothportions being connected by the reduced portion and the part 16 beinggradually tapered to produce the needle point 18 which rides in thegrooves of the record 19. The record 19 is supported on the usual irevolvable table 20.

The vibration deadener comprises a piece of semi-hard rubber 21 circularin shape and having a flat side 22 to allow for the operation of the setscrew 15. The deadener 21 is tapered and the larger end 23 abuts againstthe under side of the chuck 13. A bore 24 is provided in the center ofthe deadener and the enlarged portion 16 of the needle is fixed therein,the bore gradually getting larger as itextends upwardly from the portion16 of the needle, so that the needle is free to have its propervibration above said portion. In gripping the needle as it does, thedeadener prevents the usual vibration of the end thereof which producesthe undesirable metallicL sound now common in reproducing machines.

The needle and the deadener are sold as one unit, or the deadener mayvbe slipped over each needle as used. y

In the modification the deadener is provided with an upwardly projectingring portion 25 which partly surrounds the flange 26 formed on the chuck13. It can thus be seen that the deadener may be permanently attached tothe chuck and form an element of the reprodueer.

